First response - start of pregnancy or evap?

My period isn’t scheduled until October 26th. September 21st the condom broke and I took Plan B. I had the bleeding a week later. This past weekend was my ovulation week(unaware until I logged in) - I wore protection. I’ve had some cramping here and there some nausea , but I’ve been taking water pills...as it just helps with my appetite. Recently I took a test...too early?...probably. I looked before hand and could see a line in the light before I tested...after seems a little darker. Do you think I’m overthinking? Anyone else had this problem...before a late or missed period??

1st picture before.

2nd picture after.